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diff --git a/ANDROID_3.4.5/fs/nfsd/state.h b/ANDROID_3.4.5/fs/nfsd/state.h
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--- a/ANDROID_3.4.5/fs/nfsd/state.h
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-/*
- * Copyright (c) 2001 The Regents of the University of Michigan.
- * All rights reserved.
- *
- * Kendrick Smith <kmsmith@umich.edu>
- * Andy Adamson <andros@umich.edu>
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. Neither the name of the University nor the names of its
- * contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
- * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
- * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
- * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- */
-
-#ifndef _NFSD4_STATE_H
-#define _NFSD4_STATE_H
-
-#include <linux/idr.h>
-#include <linux/sunrpc/svc_xprt.h>
-#include <linux/nfsd/nfsfh.h>
-#include "nfsfh.h"
-
-typedef struct {
- u32 cl_boot;
- u32 cl_id;
-} clientid_t;
-
-typedef struct {
- clientid_t so_clid;
- u32 so_id;
-} stateid_opaque_t;
-
-typedef struct {
- u32 si_generation;
- stateid_opaque_t si_opaque;
-} stateid_t;
-
-#define STATEID_FMT "(%08x/%08x/%08x/%08x)"
-#define STATEID_VAL(s) \
- (s)->si_opaque.so_clid.cl_boot, \
- (s)->si_opaque.so_clid.cl_id, \
- (s)->si_opaque.so_id, \
- (s)->si_generation
-
-struct nfsd4_callback {
- void *cb_op;
- struct nfs4_client *cb_clp;
- struct list_head cb_per_client;
- u32 cb_minorversion;
- struct rpc_message cb_msg;
- const struct rpc_call_ops *cb_ops;
- struct work_struct cb_work;
- bool cb_done;
-};
-
-struct nfs4_stid {
-#define NFS4_OPEN_STID 1
-#define NFS4_LOCK_STID 2
-#define NFS4_DELEG_STID 4
-/* For an open stateid kept around *only* to process close replays: */
-#define NFS4_CLOSED_STID 8
- unsigned char sc_type;
- stateid_t sc_stateid;
- struct nfs4_client *sc_client;
-};
-
-struct nfs4_delegation {
- struct nfs4_stid dl_stid; /* must be first field */
- struct list_head dl_perfile;
- struct list_head dl_perclnt;
- struct list_head dl_recall_lru; /* delegation recalled */
- atomic_t dl_count; /* ref count */
- struct nfs4_file *dl_file;
- u32 dl_type;
- time_t dl_time;
-/* For recall: */
- struct knfsd_fh dl_fh;
- int dl_retries;
- struct nfsd4_callback dl_recall;
-};
-
-/* client delegation callback info */
-struct nfs4_cb_conn {
- /* SETCLIENTID info */
- struct sockaddr_storage cb_addr;
- struct sockaddr_storage cb_saddr;
- size_t cb_addrlen;
- u32 cb_prog; /* used only in 4.0 case;
- per-session otherwise */
- u32 cb_ident; /* minorversion 0 only */
- struct svc_xprt *cb_xprt; /* minorversion 1 only */
-};
-
-static inline struct nfs4_delegation *delegstateid(struct nfs4_stid *s)
-{
- return container_of(s, struct nfs4_delegation, dl_stid);
-}
-
-/* Maximum number of slots per session. 160 is useful for long haul TCP */
-#define NFSD_MAX_SLOTS_PER_SESSION 160
-/* Maximum number of operations per session compound */
-#define NFSD_MAX_OPS_PER_COMPOUND 16
-/* Maximum session per slot cache size */
-#define NFSD_SLOT_CACHE_SIZE 1024
-/* Maximum number of NFSD_SLOT_CACHE_SIZE slots per session */
-#define NFSD_CACHE_SIZE_SLOTS_PER_SESSION 32
-#define NFSD_MAX_MEM_PER_SESSION \
- (NFSD_CACHE_SIZE_SLOTS_PER_SESSION * NFSD_SLOT_CACHE_SIZE)
-
-struct nfsd4_slot {
- u32 sl_seqid;
- __be32 sl_status;
- u32 sl_datalen;
- u16 sl_opcnt;
-#define NFSD4_SLOT_INUSE (1 << 0)
-#define NFSD4_SLOT_CACHETHIS (1 << 1)
-#define NFSD4_SLOT_INITIALIZED (1 << 2)
- u8 sl_flags;
- char sl_data[];
-};
-
-struct nfsd4_channel_attrs {
- u32 headerpadsz;
- u32 maxreq_sz;
- u32 maxresp_sz;
- u32 maxresp_cached;
- u32 maxops;
- u32 maxreqs;
- u32 nr_rdma_attrs;
- u32 rdma_attrs;
-};
-
-struct nfsd4_create_session {
- clientid_t clientid;
- struct nfs4_sessionid sessionid;
- u32 seqid;
- u32 flags;
- struct nfsd4_channel_attrs fore_channel;
- struct nfsd4_channel_attrs back_channel;
- u32 callback_prog;
- u32 uid;
- u32 gid;
-};
-
-struct nfsd4_bind_conn_to_session {
- struct nfs4_sessionid sessionid;
- u32 dir;
-};
-
-/* The single slot clientid cache structure */
-struct nfsd4_clid_slot {
- u32 sl_seqid;
- __be32 sl_status;
- struct nfsd4_create_session sl_cr_ses;
-};
-
-struct nfsd4_conn {
- struct list_head cn_persession;
- struct svc_xprt *cn_xprt;
- struct svc_xpt_user cn_xpt_user;
- struct nfsd4_session *cn_session;
-/* CDFC4_FORE, CDFC4_BACK: */
- unsigned char cn_flags;
-};
-
-struct nfsd4_session {
- struct kref se_ref;
- struct list_head se_hash; /* hash by sessionid */
- struct list_head se_perclnt;
- u32 se_flags;
- struct nfs4_client *se_client;
- struct nfs4_sessionid se_sessionid;
- struct nfsd4_channel_attrs se_fchannel;
- struct nfsd4_channel_attrs se_bchannel;
- struct list_head se_conns;
- u32 se_cb_prog;
- u32 se_cb_seq_nr;
- struct nfsd4_slot *se_slots[]; /* forward channel slots */
-};
-
-extern void nfsd4_put_session(struct nfsd4_session *ses);
-
-/* formatted contents of nfs4_sessionid */
-struct nfsd4_sessionid {
- clientid_t clientid;
- u32 sequence;
- u32 reserved;
-};
-
-#define HEXDIR_LEN 33 /* hex version of 16 byte md5 of cl_name plus '\0' */
-
-/*
- * struct nfs4_client - one per client. Clientids live here.
- * o Each nfs4_client is hashed by clientid.
- *
- * o Each nfs4_clients is also hashed by name
- * (the opaque quantity initially sent by the client to identify itself).
- *
- * o cl_perclient list is used to ensure no dangling stateowner references
- * when we expire the nfs4_client
- */
-struct nfs4_client {
- struct list_head cl_idhash; /* hash by cl_clientid.id */
- struct list_head cl_strhash; /* hash by cl_name */
- struct list_head cl_openowners;
- struct idr cl_stateids; /* stateid lookup */
- struct list_head cl_delegations;
- struct list_head cl_lru; /* tail queue */
- struct xdr_netobj cl_name; /* id generated by client */
- char cl_recdir[HEXDIR_LEN]; /* recovery dir */
- nfs4_verifier cl_verifier; /* generated by client */
- time_t cl_time; /* time of last lease renewal */
- struct sockaddr_storage cl_addr; /* client ipaddress */
- u32 cl_flavor; /* setclientid pseudoflavor */
- char *cl_principal; /* setclientid principal name */
- struct svc_cred cl_cred; /* setclientid principal */
- clientid_t cl_clientid; /* generated by server */
- nfs4_verifier cl_confirm; /* generated by server */
- u32 cl_minorversion;
-
- /* for v4.0 and v4.1 callbacks: */
- struct nfs4_cb_conn cl_cb_conn;
-#define NFSD4_CLIENT_CB_UPDATE (0)
-#define NFSD4_CLIENT_CB_KILL (1)
-#define NFSD4_CLIENT_STABLE (2) /* client on stable storage */
-#define NFSD4_CLIENT_RECLAIM_COMPLETE (3) /* reclaim_complete done */
-#define NFSD4_CLIENT_CB_FLAG_MASK (1 << NFSD4_CLIENT_CB_UPDATE | \
- 1 << NFSD4_CLIENT_CB_KILL)
- unsigned long cl_flags;
- struct rpc_clnt *cl_cb_client;
- u32 cl_cb_ident;
-#define NFSD4_CB_UP 0
-#define NFSD4_CB_UNKNOWN 1
-#define NFSD4_CB_DOWN 2
-#define NFSD4_CB_FAULT 3
- int cl_cb_state;
- struct nfsd4_callback cl_cb_null;
- struct nfsd4_session *cl_cb_session;
- struct list_head cl_callbacks; /* list of in-progress callbacks */
-
- /* for all client information that callback code might need: */
- spinlock_t cl_lock;
-
- /* for nfs41 */
- struct list_head cl_sessions;
- struct nfsd4_clid_slot cl_cs_slot; /* create_session slot */
- u32 cl_exchange_flags;
- /* number of rpc's in progress over an associated session: */
- atomic_t cl_refcount;
-
- /* for nfs41 callbacks */
- /* We currently support a single back channel with a single slot */
- unsigned long cl_cb_slot_busy;
- struct rpc_wait_queue cl_cb_waitq; /* backchannel callers may */
- /* wait here for slots */
-};
-
-static inline void
-mark_client_expired(struct nfs4_client *clp)
-{
- clp->cl_time = 0;
-}
-
-static inline bool
-is_client_expired(struct nfs4_client *clp)
-{
- return clp->cl_time == 0;
-}
-
-/* struct nfs4_client_reset
- * one per old client. Populates reset_str_hashtbl. Filled from conf_id_hashtbl
- * upon lease reset, or from upcall to state_daemon (to read in state
- * from non-volitile storage) upon reboot.
- */
-struct nfs4_client_reclaim {
- struct list_head cr_strhash; /* hash by cr_name */
- char cr_recdir[HEXDIR_LEN]; /* recover dir */
-};
-
-static inline void
-update_stateid(stateid_t *stateid)
-{
- stateid->si_generation++;
- /* Wraparound recommendation from 3530bis-13 9.1.3.2: */
- if (stateid->si_generation == 0)
- stateid->si_generation = 1;
-}
-
-/* A reasonable value for REPLAY_ISIZE was estimated as follows:
- * The OPEN response, typically the largest, requires
- * 4(status) + 8(stateid) + 20(changeinfo) + 4(rflags) + 8(verifier) +
- * 4(deleg. type) + 8(deleg. stateid) + 4(deleg. recall flag) +
- * 20(deleg. space limit) + ~32(deleg. ace) = 112 bytes
- */
-
-#define NFSD4_REPLAY_ISIZE 112
-
-/*
- * Replay buffer, where the result of the last seqid-mutating operation
- * is cached.
- */
-struct nfs4_replay {
- __be32 rp_status;
- unsigned int rp_buflen;
- char *rp_buf;
- struct knfsd_fh rp_openfh;
- char rp_ibuf[NFSD4_REPLAY_ISIZE];
-};
-
-struct nfs4_stateowner {
- struct list_head so_strhash; /* hash by op_name */
- struct list_head so_stateids;
- struct nfs4_client * so_client;
- /* after increment in ENCODE_SEQID_OP_TAIL, represents the next
- * sequence id expected from the client: */
- u32 so_seqid;
- struct xdr_netobj so_owner; /* open owner name */
- struct nfs4_replay so_replay;
- bool so_is_open_owner;
-};
-
-struct nfs4_openowner {
- struct nfs4_stateowner oo_owner; /* must be first field */
- struct list_head oo_perclient;
- /*
- * We keep around openowners a little while after last close,
- * which saves clients from having to confirm, and allows us to
- * handle close replays if they come soon enough. The close_lru
- * is a list of such openowners, to be reaped by the laundromat
- * thread eventually if they remain unused:
- */
- struct list_head oo_close_lru;
- struct nfs4_ol_stateid *oo_last_closed_stid;
- time_t oo_time; /* time of placement on so_close_lru */
-#define NFS4_OO_CONFIRMED 1
-#define NFS4_OO_PURGE_CLOSE 2
-#define NFS4_OO_NEW 4
- unsigned char oo_flags;
-};
-
-struct nfs4_lockowner {
- struct nfs4_stateowner lo_owner; /* must be first element */
- struct list_head lo_owner_ino_hash; /* hash by owner,file */
- struct list_head lo_perstateid; /* for lockowners only */
- struct list_head lo_list; /* for temporary uses */
-};
-
-static inline struct nfs4_openowner * openowner(struct nfs4_stateowner *so)
-{
- return container_of(so, struct nfs4_openowner, oo_owner);
-}
-
-static inline struct nfs4_lockowner * lockowner(struct nfs4_stateowner *so)
-{
- return container_of(so, struct nfs4_lockowner, lo_owner);
-}
-
-/*
-* nfs4_file: a file opened by some number of (open) nfs4_stateowners.
-* o fi_perfile list is used to search for conflicting
-* share_acces, share_deny on the file.
-*/
-struct nfs4_file {
- atomic_t fi_ref;
- struct list_head fi_hash; /* hash by "struct inode *" */
- struct list_head fi_stateids;
- struct list_head fi_delegations;
- /* One each for O_RDONLY, O_WRONLY, O_RDWR: */
- struct file * fi_fds[3];
- /*
- * Each open or lock stateid contributes 0-4 to the counts
- * below depending on which bits are set in st_access_bitmap:
- * 1 to fi_access[O_RDONLY] if NFS4_SHARE_ACCES_READ is set
- * + 1 to fi_access[O_WRONLY] if NFS4_SHARE_ACCESS_WRITE is set
- * + 1 to both of the above if NFS4_SHARE_ACCESS_BOTH is set.
- */
- atomic_t fi_access[2];
- struct file *fi_deleg_file;
- struct file_lock *fi_lease;
- atomic_t fi_delegees;
- struct inode *fi_inode;
- bool fi_had_conflict;
-};
-
-/* XXX: for first cut may fall back on returning file that doesn't work
- * at all? */
-static inline struct file *find_writeable_file(struct nfs4_file *f)
-{
- if (f->fi_fds[O_WRONLY])
- return f->fi_fds[O_WRONLY];
- return f->fi_fds[O_RDWR];
-}
-
-static inline struct file *find_readable_file(struct nfs4_file *f)
-{
- if (f->fi_fds[O_RDONLY])
- return f->fi_fds[O_RDONLY];
- return f->fi_fds[O_RDWR];
-}
-
-static inline struct file *find_any_file(struct nfs4_file *f)
-{
- if (f->fi_fds[O_RDWR])
- return f->fi_fds[O_RDWR];
- else if (f->fi_fds[O_WRONLY])
- return f->fi_fds[O_WRONLY];
- else
- return f->fi_fds[O_RDONLY];
-}
-
-/* "ol" stands for "Open or Lock". Better suggestions welcome. */
-struct nfs4_ol_stateid {
- struct nfs4_stid st_stid; /* must be first field */
- struct list_head st_perfile;
- struct list_head st_perstateowner;
- struct list_head st_lockowners;
- struct nfs4_stateowner * st_stateowner;
- struct nfs4_file * st_file;
- unsigned long st_access_bmap;
- unsigned long st_deny_bmap;
- struct nfs4_ol_stateid * st_openstp;
-};
-
-static inline struct nfs4_ol_stateid *openlockstateid(struct nfs4_stid *s)
-{
- return container_of(s, struct nfs4_ol_stateid, st_stid);
-}
-
-/* flags for preprocess_seqid_op() */
-#define RD_STATE 0x00000010
-#define WR_STATE 0x00000020
-
-struct nfsd4_compound_state;
-
-extern __be32 nfs4_preprocess_stateid_op(struct nfsd4_compound_state *cstate,
- stateid_t *stateid, int flags, struct file **filp);
-extern void nfs4_lock_state(void);
-extern void nfs4_unlock_state(void);
-extern int nfs4_in_grace(void);
-extern void nfs4_release_reclaim(void);
-extern struct nfs4_client_reclaim *nfsd4_find_reclaim_client(struct nfs4_client *crp);
-extern __be32 nfs4_check_open_reclaim(clientid_t *clid);
-extern void nfs4_free_openowner(struct nfs4_openowner *);
-extern void nfs4_free_lockowner(struct nfs4_lockowner *);
-extern int set_callback_cred(void);
-extern void nfsd4_probe_callback(struct nfs4_client *clp);
-extern void nfsd4_probe_callback_sync(struct nfs4_client *clp);
-extern void nfsd4_change_callback(struct nfs4_client *clp, struct nfs4_cb_conn *);
-extern void nfsd4_do_callback_rpc(struct work_struct *);
-extern void nfsd4_cb_recall(struct nfs4_delegation *dp);
-extern int nfsd4_create_callback_queue(void);
-extern void nfsd4_destroy_callback_queue(void);
-extern void nfsd4_shutdown_callback(struct nfs4_client *);
-extern void nfs4_put_delegation(struct nfs4_delegation *dp);
-extern __be32 nfs4_make_rec_clidname(char *clidname, struct xdr_netobj *clname);
-extern int nfs4_client_to_reclaim(const char *name);
-extern int nfs4_has_reclaimed_state(const char *name, bool use_exchange_id);
-extern void release_session_client(struct nfsd4_session *);
-extern __be32 nfs4_validate_stateid(struct nfs4_client *, stateid_t *);
-extern void nfsd4_purge_closed_stateid(struct nfs4_stateowner *);
-
-/* nfs4recover operations */
-extern int nfsd4_client_tracking_init(struct net *net);
-extern void nfsd4_client_tracking_exit(struct net *net);
-extern void nfsd4_client_record_create(struct nfs4_client *clp);
-extern void nfsd4_client_record_remove(struct nfs4_client *clp);
-extern int nfsd4_client_record_check(struct nfs4_client *clp);
-extern void nfsd4_record_grace_done(struct net *net, time_t boot_time);
-#endif /* NFSD4_STATE_H */
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